Duct offset elbow



FIG. 1 is a top perspective view of a duct offset elbow showing our new design;

FIG. 2 is a side elevational view thereof, the opposite side being a mirror image of the side shown;

FIG. 3 is an end elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is an elevational view taken from the end opposite that shown in FIG. 3; and,

FIG. 6 is a bottom plan view thereof. 

The ornamental design for a duct offset elbow, as shown and described. 